Necticut



(No Model.)`

I'. H. RICHARDS.

MEANS FOB, ADJUSTING GAM ROLLERS.

10.366.189 Patented Ju1y 5, v1837.

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UNITED STATES PATENT OFFICE.

FRANCIS H. RICHARDS, oF SPRINGFIELD, MASSACHUSETTS, AsSICNoR oF CNEHALF To THE PRATT a WHITNEY COMPANY, oF HARTFORD, CoN- NECTIGUT.

l MEANS FOR ADJUST SPECIFICATION forming part of Letters ING CAM-ROLLERS.

Patent No. 366,189, dated July 5, 1887.

Application filed November 15, 1886. Serial No. 2lS72. (No model.)

To all whoml it may concern:

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Cam-Roller Adj ustnients,of which the following is a speciiication.

This invention is in the nature of an im- Io provement on the mechanism for converting motion described and claimedin United States Patent No. 297,165, granted to me April 22, 1884; and it consists in certain improvements especially designed for simultaneously adjusting the series of cam-rollers of the said apparatus, as hereinafter more fully set forth.

In the drawings accompanying and forming a part of this specification, Figure 1 is a side view of that part of the mechanism embodyzo ing my improvements. Fig. 2 is a similar View of the same, partially in section. Fig. 3 is a top view.

Similar characters designate like parts in all the figures. z5 The intermittently-rotating shaft S carries firmly affixed thereto the rollerturret B, as described in my aforesaid Letters Patent. This turret has a series of hubs, (usually four of them, as shown,`) 2, 3, 4, and 5, which are 3o boredto receive the roller-stems 6, 7, 8, and 9, respectively, which carry the rollers 10,11, 12, and 13. Said stems are preferably held in place by clamping them in the hubs by screws 15, the hubs being cut open on one 3 5 side, as shown, to permit this. The lower end of turret B is bored larger than shaft S', and is threaded to receive the tubular adjustingscrew D. The point of this screw is tapered, as at 16, Fig; 2, to form a circular wedge for 4o pushing out the stems, the inner ends of which are preferably correspondingly beveled ortappered, as at 17, to secure a better bearing-surv face. A check-nut, 18, is usually provided to securely set the screw D.

-When it is required to spread out the circle of the rollers to a larger diameter for adjusting their bearing-pressure on thed'riving-carn, it is only necessary to loosen nut 18 (and perhaps screws 15, if these are very tightly screwed up) and screw up the wedge D, as the particu-` lar case may demand. To setin the rollers, the reverse operation is performed, wedge D being screwed down and the stems driven in against it.

The tubular wedge D may be threaded on the inside and fit a corresponding vthread ou shaft S', if this modification shall be for any reason preferable to that shown; and it should be understood that the other details are also capable of modification in various 6o Ways and degrees, after the manner of machines in general, without departing from my inven tion.

This cam-roller adjustment is applicable, when used in connection with the above-specified mechanism for converting motion,'to the improved envelope-machine Vdescribed and claimed in United States Patent No. 340,244, granted to me April 20, 1886.

Having thus described my invenlion, I 79.

claimf The combination, for' simultaneously adjusting a series of cam-rollers, of the shaft and the roller-turret, the roller-stems carried in said turret, and the tubular wedge, all substantially as described.

I FRANCIS H. RICHARDS. Vitnesses: y

GEC. W. DRAHE,

WILRUR M. STONE. 

